a combination of reciprocating steam engines and a steam turbine. She had three screws. A pair of four-cylinder triple expansion engines drove her port and starboard screws. Exhaust steam from those engines powered one low-pressure turbine that drove her middle screw. H&W had used this arrangement first on Laurentic for White Star Line. Justicia had three funnels, only two of which were flues for her boilers. The third was a dummy, included purely for aesthetic reasons. With the exception of the three Olympic-class liners, Justicia was one of the largest and most powerful ships ever built with this combination of reciprocating and turbine engines. Her reciprocating engines were the same size as those in Belgenland, but her total power rating was higher. Between them, Justicias three engines were rated at a total of 2,903 NHP or 22,000 ihp and gave her a speed of . This was an economical speed for peacetime service, but not quick enough for her to sail unescorted in wartime. Building and acquisition Harland & Wolff built Statendam on slipway number 3 as yard number 436. Her keel plates were laid down in 1912 and she was launched on 9 July 1914. However, the first world war broke out on 28 July, and the UK joined on 4 August. Work on Statendam was slowed down to let H&W concentrate on more urgent war-related work. However, the fact that her construction was well advanced offered potential for her to be completed for war service. In October 1914, the UK Admiralty offered NASM £1,000,000 for use of the ship, with a guarantee to return it at the end of the war. Decorative elements already installed were removed, as was customary when converting passenger liners into troop ships. In Statendams case they were sent to Rotterdam for storage. H&W completed the ship slowly, taking special measures to adapt her to war service. Unlike her contemporaries Belgenland and Orca, H&W completed Justicia with her dummy funnel. However, the size of all three funnels was smaller than their original design, in order to conserve steel. In 1915, the UK government requisitioned the still-incomplete ship. It offered her to Cunard to replace Lusitania, which had been sunk in May 1915. The name Justicia means "justice", and conforms with Cunard policy of giving its ships a name ending with -ia. Moreover, Cunard was unable to raise a complete crew for her. In November